JPH0428645Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a strip coil winding and unwinding machine, particularly to a double-sided winding and unwinding machine.

(Prior Art) Conventionally, as shown in FIG. 3, a double-sided winding and unwinding machine has been used, for example, as shown in FIG. A pair of holder spindles 2, 2
a pair of left and right main bearing holders 3, 3 that rotatably support each holder main shaft, and a main body base 4 that supports these left and right main bearing holders slidably in the axial direction of the holder main shafts 2, 2; an opening/closing and centering main bearing pedestal moving device 8 including a screw 5, a screw transmission device 6, and a prime mover 7, which are screwed together with the left and right main bearing pedestals 3, 3, respectively, so as to move the left and right main bearing pedestals 3, 3 synchronously; A holder main shaft drive device 11 including a transmission device 9 and a prime mover 10 for rotationally driving one holder main shaft 2, and a presser roll that engages from above the outer periphery of the strip coil 1 supported at both ends by the left and right holder main shafts 2, 2. 12 are known.

The presser roll mentioned above is also called a wrapper roll, and is used for banding or taping to prevent loosening after winding, unpacking after installing the coil, and feeding the tip of the strip from the coil. , may be used at the beginning and at all times during the winding or unwinding operation.

Conventionally, as shown in FIG. 4, the base end of a swing arm 15, on which the presser roll 12 is rotatably attached, is attached adjacent to the winding machine by a pin 16. A presser roll operating cylinder device 18 is pivotally mounted on the processing machine 17 and inserted between the swing arm 15 and the processing machine 17, or as shown in FIG. A swing arm 1 that supports a presser roll on a suitable support 20 that is erected.
5 is pivotally connected by a pin 16, and the swing arm 1
A presser roll operating cylinder device 18 is inserted between the presser roll operating cylinder device 18 and the floor 19, and the swing arm 15 is connected to the pivot pin 16 by the presser roll operating cylinder device 18.
The presser roll 12 is rotated around the strip coil 1 to press it against the outer circumferential surface of the strip coil 1 from above.

(Problem to be Solved by the Invention) However, the presser roll of the conventional winding and unwinding machine described above is not attached to a fixed processing machine or a fixed support stand or column adjacent to the winding and unwinding machine. Since the operating position is fixed, centering adjustment is performed to align the center of the winder with the center of the strip by moving the left and right main bearings 3, 3 to the left or right in the axial direction. If the presser roll is pressed against the outer periphery of the strip coil during this process, there is a problem in that twisting force acts on the strip during feeding, resulting in defective products.

Further, the swing arm supporting the presser roll is pivotally mounted outside the winding machine, like a processing machine adjacent to the winding machine, or a fixed support or a support stand, resulting in poor workability. Furthermore, with the conventional support structure using the swing arm 15, it is difficult to suspend the strip coil 1 from above to the winding machine using a hoist crane or the like, and a cart with a lifting mechanism is required for this purpose, which increases equipment costs. There was a problem.

The object of the present invention is to eliminate the above-mentioned problems and to provide a winding and unwinding machine in which the presser roll is also centered in synchronization with the centering operation of the main bearing stand.

(Means for Solving the Problems) According to the present invention, as shown in FIG. 1, a pair of left and right holder main shafts are rotatably provided spaced apart on the same axis so as to support the strip coil 1 at both ends. 2, 2, and a pair of left and right main shaft supports 3, 3 that rotatably support each holder main shaft, respectively;
The main body base 4, which supports these left and right main bearings in a slidable manner in the axial direction of the holder main shafts 2, 2, and the left and right main bearings 3, 3 are screwed together so that the left and right main bearings 3, 3 move synchronously. A centering main shaft cradle moving device 8 including a screw 5, a screw transmission device 6, and a prime mover 7, and a presser roll 12 that engages from above the outer periphery of the strip coil 1 supported at both ends by the left and right holder main shafts 2, 2. In the dual-support type winding and rewinding machine, left and right guide frames 26, 26 are attached to the left and right main bearings 3, 3 at their lower ends, respectively, with a pivot pin 2.
7, 27, and horizontal arms 28, 2 are mounted on the left and right guide frames 26, 26, respectively.
8 are slidably attached, and these horizontal arms extend parallel to each other at vertically spaced positions, and a presser roll centering gear 29 inserted between the horizontal arms 28 and 28 is attached to the presser roll centering gear 29 of the presser roll 12. Rack teeth 31 are rotatably supported by the holder 30 and provided on the upper and lower horizontal arms 28, 28.
31 are respectively meshed with the presser roll centering gear 29.

(Function) According to the above-described configuration of the present invention, in order to center the winding machine with respect to the strip, the centering main bearing pedestal moving device 8 is activated to move the left and right main bearing pedestals 3, 3 left and right synchronously. At this time, the presser roll guide frame 2 on the main bearings 3, 3
The horizontal arms 28, 28 attached to the horizontal arms 6, 26 move synchronously to the left and right, respectively, and the presser roll 12 moves left and right through the centering gear 30 that meshes with the rack teeth 31, 31 of these horizontal arms 28, 28. It is centered while being aligned with the widthwise center of the strip coil supported at both ends by the holder main shafts 2, 2.

Therefore, even if the presser roll is pressed against the outer periphery of the strip coil, no twisting force is applied to the strip during feeding.

In addition, the guide frame 26 of the presser roll 12 is supported on the main bearing stand 3, which improves the workability around the winding machine. Since the guide frame 26 is pivoted to the base 3, when the guide frame 26 is tilted, the presser roll 12 moves the coil 1.
The coil 1 was moved from the upper position to the side, thereby making it possible to suspend the coil 1 from above.

(Embodiment) An embodiment of the present invention is shown in Figs. The holder main shafts 2, 2 are rotatably supported on the left and right main bearings 3, 3, respectively, and these left and right main shafts 3, 3 are connected to the main body base 4 by suitable guides (not shown). 2, and includes a screw 5, a screw transmission device 6, and a prime mover 7, which are slidably supported in the axial direction of the main bearings 2 and are threadedly engaged with the left and right main bearings 3, 3, respectively, so as to move the left and right main bearings 3, 3 synchronously. A main bearing stand moving device 8 for opening/closing and centering is provided on the main body base 4.

A presser roll 12, which engages from above the outer periphery of the strip coil 1 supported at both ends by the left and right holder main shafts 2, 2, is rotatably held by a presser roll holder 29.

The left and right guide frames 26, 26 are attached to the left and right main shaft holders 3, 3 at their lower ends with pivot pins 27, 2, respectively.
As shown in FIG. is extended, so that the guide frame 26 is tilted from the working position of the presser roll 12 shown by the solid line to the retreated position shown by the imaginary line. The strip coil is moved laterally in a substantially horizontal plane and retracted laterally, and in this retracted position the strip coil can be moved in and out from above by means of a hoist or an overhead crane.

Horizontal arms 28, 28 are slidably mounted on the left and right guide frames 26, 26, respectively, and the horizontal arms 28, 28 and the guide frames 26, 26
A horizontal arm elevating cylinder device 34 is inserted between the horizontal arm elevating cylinder device 34 and the lower end of the horizontal arm elevating cylinder device 34, and the horizontal arms 28, 28 are moved up and down on the guide frames 26, 26, respectively. It is configured so that it can be

The left and right horizontal arms 28, 28 are arranged parallel to each other in vertically spaced positions, and are attached to their respective guide frames 2.
A presser roll centering gear 29 extending from the presser roll holders 6 and 26 and rotatably supported by a gear shaft 35 on the presser roll holder 30 is inserted between the upper and lower horizontal arms 28 and 28.
The rack teeth 31, 31 provided on the presser rolls 8, 28 are meshed with the presser roll centering gear 29, respectively, so that the widthwise center of the presser roll 12, which is rotatably held by the presser roll holder 30, is aligned with the left and right It is configured to coincide with the center in the width direction of the strip coil 1 held by the holder main shafts 2, 2.

(Effects of the invention) According to the invention, by supporting the presser roll on the left and right main bearings of the winder by means of a tiltable guide frame, the presser roll can be synchronized with the centering adjustment of the winder. When processing narrow strip coils, the support frame of the presser roll will no longer protrude outward from the bearing stand, and the space around the winder will become wider, improving work efficiency. Furthermore, the strip coil can be taken in and out using a hoist or an existing overhead crane, eliminating the need for conventional equipment such as a lift truck, resulting in benefits such as reduced equipment costs.

[Brief explanation of the drawing]

FIG. 1 is a front view of a double-sided winding and rewinding machine according to the present invention, FIG. 2 is a side view of the device shown in FIG. 1, and FIG. 3 is a conventional double-sided winding and unwinding machine. The front view of the rewinding machine, and FIGS. 4 and 5 are schematic diagrams showing a conventional presser roll mounting structure. 1...Strip coil, 2...Holder main shaft, 3...Main bearing rest, 4...Main body base, 5...
... Screw, 6... Transmission device, 7... Prime mover,
8... Centering main bearing stand moving device, 12
... Presser roll, 26 ... Guide frame, 27
... Pivot pin, 28 ... Horizontal arm, 29 ... Centering gear, 30 ... Presser roll holder.

Claims (1)

[Scope of utility model registration request] A pair of left and right holder main shafts 2, 2 are rotatably provided apart on the same axis to support the strip coil 1 at both ends, and a pair of left and right main bearings 3, 3 rotatably support each holder main shaft. , a main body base 4 that supports these left and right main bearings in a slidable manner in the axial direction of the holder main shafts 2, 2, and a main body base 4 that supports the left and right main bearings 3, 3 in a slidable manner in the axial direction of the holder main shafts 2, 2.
A centering main shaft cradle moving device 8 that moves upwards and left and right synchronously, and left and right holder main shafts 2, 2.
In the double-support type winding and unwinding machine, which is equipped with a presser roll 12 that engages from above the outer periphery of the strip coil 1 supported at both ends by
are pivotably mounted on pivot pins 27, 27 at their lower ends, and horizontal arms 28, 28 are slidably mounted on the left and right guide frames 26, 26, respectively, and these horizontal arms are placed at vertically spaced positions. The horizontal arms 28, 2 extend parallel to each other.
A presser roll centering gear 29 inserted between the upper and lower horizontal arms 28, 2 is rotatably supported by the presser roll holder 30 of the presser roll 12.
A dual-support type winding and unwinding machine characterized in that the rack teeth 31, 31 provided at the presser roll centering gear 29 are meshed with the presser roll centering gear 29, respectively.